#include <iostream>

// 输入两个整数，打印出这两个整数所指定的范围内的所有整数
int main()
{
    int val_1 = 0;
    int val_2 = 0;
    std::cout << "Enter two numbers :" << std::endl;
    std::cin >> val_1 >> val_2;

    while(val_1 <= val_2)
    {
        std::cout << val_1 << std::endl;
        ++val_1;
    }
    std::cout << "val_1 = val_2" << std::endl;

    return 0;
}